系统管理贯穿于整个信息管理系统，并且为每个模块、操作提供权限认证信息。

System management may impenetrate whole application system, and supply authorization and rights for every way.

youdao

系统管理贯穿于整个信息管理系统，并且为每个模块、操作提供权限认证信息。

System management may impenetrate whole application system, and supply authorization and rights for every way.

youdao